Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination

K. Keul, T. Koß, F. L. Schröder, S. Müller

2019

Abstract

We present a method for combining two-level data structures and directional precomputation based on the Line Space (LS). While previous work has shown that LS precomputation significantly improves ray traversal performance of typical spatial data structures, it suffers from high memory consumption and low image quality due to internal approximations. Our method combines this technique with two-level BVHs, where the LS is integrated within second-level object BVHs. The advantages are, among others, optimizations in terms of approximation accuracy and required memory. In addition, we propose a method to use an accurate BVH in combination with the fast approximation-based LS for path tracing in order to further reduce image errors of the LS while still benefitting from its gain in performance.

Paper Citation

in Harvard Style

Keul K., Koß T., Schröder F. and Müller S. (2019). Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination. In Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - Volume 1: GRAPP; ISBN 978-989-758-354-4, SciTePress, pages 228-235. DOI: 10.5220/0007345902280235

in Bibtex Style

@conference{grapp19,
author={K. Keul and T. Koß and F. L. Schröder and S. Müller},
title={Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination},
booktitle={Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - Volume 1: GRAPP},
year={2019},
pages={228-235},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007345902280235},
isbn={978-989-758-354-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2019) - Volume 1: GRAPP
TI - Combining Two-level Data Structures and Line Space Precomputations to Accelerate Indirect Illumination
SN - 978-989-758-354-4
AU - Keul K.
AU - Koß T.
AU - Schröder F.
AU - Müller S.
PY - 2019
SP - 228
EP - 235
DO - 10.5220/0007345902280235
PB - SciTePress